Buffing-machine.



No. 871,990. Y PATENTED NOV. 26, 1907. J. GELZENLIGHTER. BUFFING MACHINE.

APPLICATION FILED JULYll, 1906.

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PATBNTEDNOV. 26, 1907.

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APPLICATION FILED JULY 11. 190e.

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No. 871,990. PATENTEDNOV. 26, V1907.

J. GBLZENLICHTBR. BUFFING MACHINE.

APPLICATION FILED JULY11,1906.

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JOHN GELZENLICHTER,'OF LYNN, MASSACHUSETTS, ASSIGNOR TO MANUFACTURERS MACHINE COMPANY, 'OF MONTCLAIR, NEW

JERSEY.

JERSEY, A CORPORATION OF NEW BUFFIN G-MACHINE Specification of Letters Patent.

Patented Nov. 26, 1907.

Application filed July 1l. 1906. Serial No. 325.582.

To all whom fit 'may concern.'

Beit known that I, JOHN GELZENLIcHrnu, a citizen of the United States, residing at Lynn, in the county of Essex, State of Massachusetts, have invented an Improvement in Bu'l'ling-lvlachines, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

`This invention relates to bulling machines of the type commonly known as Naumkeag7 machines, used principally in the manufacture of boots and shoes.

In the manufacture of boots and shoes it is customary to buit' or grain the bottoms of the fore parts with a bulling machine, employing a roll surrounded by an abradant covering, but this roll cannot be carried along the shanks to the heels, and for bulling shan is machines of the N aumkeag type are employed, they having pads of disk shape that revolve about vertical axes. These N aumkeag pads permit of the bulling of the shanks of the shoes, however irregular in shape they may be, and also, by reason of theircircular shape, permit the bulling to be carried close to and to follow the usual curved breast lines of the heels.

Naumkeag machines are customarily employed for first bul'ling or graining of the shanks, and then, usually with a finer abradant, are used for iinishing both the shanks and the fore parts,

N aumkeag machines have generally been provided with pneumatic pads made of rubber and adapted to be inflated with air to give them a rounded shape and a highly resilient quality. These pads have been provided with coverings of emery cloth molded to approximately the shape of the deflated pad, provided with iii-turned, tongued lips or flanges adapted to overlie the pads and be clamped in position, so that when the pads are in'llated to resume their full rounded position, the covers will be given the true pad shape 'for the 'first time. In applying these pad covers it has been customary to provide machines with cover-applying devices located at one side and when re-covering has been required the pads of necessity were removed, with their heads and parts of the carrying spindles therefor, and transferred to the cover applying devices to receive the covers, after which they were replaced upon their spindles and the pads inllated for use. All this has consumed time that'could better have been employed by the parties in performing work on the 'machines for which they would receive pay.

My invention aims to improve the bul'ling machine of the Naumkeae' type in many respects calculated to facilitate the performance of Work thereon.

To this end my invention, among other things, contemplates a pad cover applying device which while mounted normally at one side and in position whore it will not interfere with the performance of work on the machine may, when a new pad cover is to be applied, be moved or swung into position directly in line and beneath the spindle carrying the pad to be covered so that the pad cover may be applied directly to the pad on the spindle without necessitating the removal of the pad or any part of the spindle, with all the loss of time incident thereto.

My invention also contemplates a cover applying device that is capable of applying the pad cover already molded, full rounded or of the desired shape to the pad of full rounded shape, either pneumatic or other, without necessitating the dellation or l'lattening thereof.

My invention contemplates various other features which together with those above particularly referred to will be best understood from a description of the machine illustrating one embodiment thereof.

rFig. l, in side elevation, shows a machine illustrating one embodiment of my invention. 1Eig. 2, a detail in front elevation, showing a part of the machine head. Fig. 3, a detail in top or plan View, of the front part of the machine head. on an average scale, this view showing the normal and also the operativo position of the cover applying device in the embodiment of my invention here shown. Fig. fl, a cross sectional detail on the dotted line 4 4, Fig. 3. Fig. 5, an enlarged plan view of the cover applying device. Fig. (l, a detail in elevation partial section, of the cover applying` device, this vie.r showing the applying device in full lines, in normal position and in dotted lines` in active position. lfig. 7, a similar View showing the applying device in the act of layingl over the lip of the cover about and upon its pad. Fig. a detail illustrating one form of cover that may be used.

ln the particular embodiment of my inm vention selected for illustration herein and shown in the drawings, referring first to Fig. 1, the machine column 1, its head 2, provided at the front with a vertical spindle 3, carrying a pad 41, with a clamping cap 5, screwed thereon, said head being vprovided at its rear end with a pair of idler pulleys 6, over which a belt 7, extended about a pulley on the pad spindle may be carried in leading it down to andv about the driving pulley 8, on a drive shaft 9, at the base of the column, are or may be of any suitable desired construction. so far as concerns my present invention.

The pad 4, may be of the Nanmlreag type adapted to be inflated for use or, if desired and preferable, said pad may be of some composition or structure that will cause it normally to retain its desired shape without inflation yet preserving at all times the necessary elasticity or resiliency required for the particular work for which these machines are adapted. l.

ln machines of this type means is usually provided for drawing and conducting away the dust produced by the bufiing, and while it is often preferred to Connect the machine with the general exhaust dust system of the factory employing one single suction apparatus for all machines, it is also common to provide each individual machine with its own suction. fan. in the machinel here illustrated the latter practice has been followed and the column, see Fig. 1, is shown provided with a fan chamber 10, provided interiorly with a usual suction fan (n ot shown), and having an outlet at 11, adapted to be connected with any useful discharge conduit. The inlet conduit for this fan chamber leads upward and forward to a position directly behind and opposite the pad 4, said inlet being here indicated at l 11. To facilitate bringing the pad applying device into operative position beneath the pad, the inlet end 11,- of this suction conduit is mad.. movable, the same as here shown, being carL ried at one side the head upon a hinge 12, on an arm 13, projecting from the side ol' the machine head. This inlet has a lip le, rising to a level above the pad, to facilitate the entrance of dust to the inlet.

Referring now to Fig. 3, the same casting in which said movable inlet 11 ,.is formed is shown provided with a laterally extended and downwardly directed arm 14"", reaching through to the opposite side of the machine from that at which the hinge 12, is located. said arm at its outer end being provi-led with a vertical bearing for the stem 15, of the cover applying device A. This ystein is shown provided at its up per endwith a spider actuator beingl mounted upon the upper end of the spindle 21, arranged to slide vertically nithin the stem 15, made tubular for thc purpose. The actuator spindle is supported within said stem by a spring 22, which, when the applying' device as a whole is lifted, causes the actuator to be lifted with it, but which yields when the actuator meets the opposite pad or cover thereon and' holds the said cover against or about said pad while the further upward lifting movement of the stem, its spider, and the infolders thereon causes the latter, as indicated in dotted lines, Fig. 6 to be turned and moved radially inward about the actuator lip as a fulcrum to lay over the cover lip upon the upper edge of the pad. The coveris here indicated at 23, Fig. 8, and is preferably, as stated, molded to the desired shape before it is placed over or against the pad. It may have any kind of clamping lip, but that here shown is wired or tongued at 24, said lip being shown as first inturned somewhat and then its tongues are directed outwardly to facilitate applying the cover to the pad with,- out folding the tongues under and between the'cover and the pad.

Referring to Fig. 6, it will be clear how the cover may be placed loosely in position upon the pad and the cover applying device A raised to cause its actuator 20, to inclose the cover and press it smoothly against the fully shaped or rounded pad after which the infolders are moved to infold the tongue or other lip of the cover over and upon the pad periphery as shown in full lines Fig. 7. lnfolders are then. slightly withdrawn by dropping the applying device and the clamping cap 5, screwed down upon and to hold firmly the inturned lip or tongues thereon, after which the device may be restored to its lowermost position.

To facilitate lifting of the applying device I have provided the same with a bearing hand lever 25, see Fig. 6, fulcrurned at 26, on the end of the arm 14, and having its forked end entering a vertical slot in the stem 15, to receive a pin 27, passing therethrough. This handle is directed outwardly into position convenient for engagement by the operator and furnishes sufficient power for the applying device conveniently and to smoothly and eifectually apply a cover to the pad above it.

The side of the stem 15 is shown as notched at 28', for engagement by a spring pressed latch 29, adapted to catch the same in the most elevated position to which it is brought and there hold it and the cover while the clamping cap 5, is being adjusted in clamping osition. After the cover has been applie this latch is released and the applying device dropped and swung back to normal position.

The applying device and suction inlet 11, being upon one and the same casting and thus connected, as the one is moved into position relative to the spindle the other is correspondingly moved out of position to give clearance thereto.

In Fig. 6 the infolders 18, are shown as presenting a lost motion between themselves and the actuator lip 20, and there shown as normally supported from beneath by springs 80,' which however are capable of yielding during the action of the infolders upon a cover. The effect of these springs is intended to be to hold the infolders in a more elevated position than would normally be the case by the lip alone yet giving them the advantage of a downward play during the infolding motion, which a rigid lip would not permit.

Referring to Fig. 7, the actuator "20, is seated and restrained from rotation by two guide rods 31, reaching downward through the spider to and through guides on the arm head 14a.

To assist bringing the applying device into perfect alinement with the spindle, I have provided the machine head, just bach of the pad spindle with a spring pressed latch 32, see Fig. 4, adapted to be lifted against the action of its spring by a hand lever 33, fulcrumed at 34, on the side head. The casting of which the suction inlet and carrying arm 14a are a part, is provided with two recesses, one of which is shown in dotted lines, Fig. 3, and the other in full lines at 35, Fig. 3. The former of these recesses receives the latch 32, and holds the inlet l1, in position during the normal operation of the machine. W' hen the applying device is to be brought into action this handle 33 is depressed to lift its latch and release the casting, when the latter may be turned on its hinge to bring the applying device into position beneath the pad where it 1s caught, centered and locked by the spring action of said loch 32, which brings it into position until the pad cover has been applied, when said latch is again released and the parts restored to normal position.

Referring now to Fig. 5, l have shown the infolders 18, as provided respectively with laterally extended ears 36, which enter respectively lateral slots or recesses in the next adjacent infolders. These ears constitute one form of closures for closing the spaces between the several infolders. e Of course as the infolders are withdrawnradially these intervening spaces widen and as they again converge when brought together for applying a pad cover there might at times be danger of crinkling or creasing the cover lip in the process of infolding.

Directly below and in the rear of the pad is shown the usual brush 37, driven by a belt 38, from a pulley on the shaft of the idlers 6, and arranged in a suction hood 39, connected with the suction of the machine and on which the surfaeers bull'ed may be cleaned of dust.

It will be clear that the operation of changing or applying pad covers is greatly facilitated by my invention because no time is lost in removing the pad carrier positioning it in the cover applying device, removing it from the applying device, positioning it on its spindle as heretofore. A single movement is sullieient to bring the applying device into position for applying a cover and a similar opposite movement to .restore it to its normal inactive position. Furthermore and absolutely', the pad carrier is much less likely to become loosened and incapable of use when permitted to remain always upon ils spindle than when it is requiredv to be removed frequen lL-in fact, many times each day, as heretofore, for the application of covers to the parl.

My invention is also advantageous because it insures the desired and proper' formation of the cover when it is applied, hecause the shape given to the actuator 20, is of necessity communicated to the cover and thus determines pred` terminately the shape of the operating surface of the cover.

WYhile my invention is perhaps most applicable to a machine of the t y pe here shownl it is however, applicable to anyA machine having any sort of a pad or operative support for the abradant covering in which my invention might be found useful.

l claim.

l. ln a bulllng machine, 'the combination with a pad carr) ing support, of a cover appli, ing device and means to move it toward and from said support, for use in applj'inga cover to the latter.

ln a bulling machine, the combination with a pad carry ing spindle, of a pad cover appl', ing device mounted in proximity to said spindle and movable into and out of operative position relative to and for assisting in` applying a pail cover to a parl on said spinale.

ln a bulling machine, the combination with a pad carrgy ing support. of a transferable cover applying device, and means to transfer it to coverappl; ing position.

4. ln a bulling machine, the combination with a pad carrying support, of a transferable cov er appl) ing device, and means to center it in cover applying position and also in normal inoperative position.

. tuator for said infolders, and means for 5. In a bufling machine, the combination with a pad carrying support, of a pad cover applying device mounted in proximity to said support and transferable into and out of apply ing position relative to said support, and operating means therefor transferable therewith.

6. In a buffing machine, the combination `with a pad cover support, of a pad cover applying device having cover applying means presenting substantially the shape of the cover when inoperative condition.

7. In a buffing machine, the-combination with a cover support, of a cover applying` device comprising a yielding face presser and infolding means cooperating therewith.

8. In a bufling machine, thecombination of infolders 18, a support 16 therefor, an acmoving the actuator and infolders.

9. -In a bufIing machine, the combination with a cover support, of a cover applying device comprising a yielding face presser, infolding means cooperating therewith, and means for transferring said applying device to and from said cover support.

10. In abuffing machine, the combination with a cover support, of a face former to give desired formation to the cover face, infolding means cooperative therewith, and means for transferring said applying device to and from said cover support.

11. In a buiiing machine, the combination of infolders 18, a support 16 to which they are pivoted, an actuator 2() having a part engaging said infolders, and means for relatively moving the actuator and infolders.

12. In a buffing machine, the combination with a pad carrying spindle and means to rotate it, of a cover applying device normally out of'operative relationship with a pad on said spindle but transferable into operative relationship therewith, and means to operate said applying device in its said operative position.

13. A bufling machine provided with a cover applying device expansible and contractible radially and means to move the same axially to produce said radial movement.

14. A buffing machine provided with cover applying means contractible and expansible radially and an axially movable actuator therefor.

15. A bufIing machine provided with cover applying means contractible and expansible radially and an axially movable face forming actuator therefor. Y

16. A bufling machine provided with cover applying means contractible and expansible radially and an axially movable and yielding actuator therefor.

17. In a bufing machine, the combination with a bufing device of a suction conduit therefor and a cover applying device, said conduit and applying device being selectively movable into and out of operative relationship to said bufIing device.

18. In a bufiing machine, the combination with a bufiing device of a suction conduit therefor and avconnected cover applying device, said conduit and applying device being selectively movable to carry one into and the other out of operative relationshipl to said bufiing device.

19. In a bufIing machine, the combination` with a buffing device of a suction conduit therefor and a connected cover applying device, both selectively movable into and out of operative relationship to said buffing device, said conduit and cover applying device being respectively hinged for connected movement into and out of position.

20. In a bufiing machine, the combination with a buliing device of a cover applying device transferable into and out of operative position relative to said buliing device, means for moving said cover applying device transversely to its transferring movement, and locking means to retain it in its transversely moved position.

21. A bufling machine comprising, in combination, a pad, cover allixing means therefor, a suction conduit the inlet of which is movable into and out of effective relation to said pad and means connecting said affixing means and conduit inlet such that as one is moved into operative relation to said pad the other is moved out of such relation.

22. In an apparatus of the character described, the combination with infolders 18, a support 16 to which they are movably connected, an actuator 2O having a part engaging said infolders, and means for conjointly moving the actuator and infolders to placev the cover against the pad andv to thereafter relatively move the infolders and actuator to fold the edge of the cover about the pad.

23. In an apparatus of the character described, the combination of infolders 18, having recessed ends, a support to which said infolders are pivoted, an actuator 20 having a part engaged by the recessed ends of the infolders, means for moving the infolders andactuator together to bring the cover into engagement with the pad, and yielding means to permit relative movement of the infolders and actuator.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

JOHN GELZENLICIITER. Vitnesses:

SIDNEY F. SMITH,

WILLIAM H. Hoornn. 

